{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "21261436492f0014930e804e20586e3833bb91b9"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21261436492f0014930e804e20586e3833bb91b9"
            }
          ],
          "repo": "https://github.com/kamailio/kamailio",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106803.json"
  },
  "details": "A stack-based buffer overflow exists in Kamailio v6.1.3 and v6.1.4 in the ims_registrar_pcscf module. When processing a crafted application/reginfo+xml NOTIFY message, process_contact() copies an attacker-controlled port value from the alias parameter into a fixed 5-byte stack buffer without validating its length. An unauthenticated remote attacker can trigger stack corruption and terminate the P-CSCF process, resulting in denial of service.",
  "id": "CVE-2026-106803",
  "modified": "2026-11-03T02:30:18.219478511Z",
  "published": "2026-11-02T00:00:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gist.github.com/hackeryounow/7d7ccc9ec501a5d8c9143b2e1bcc11cb"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106803.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/kamailio/kamailio/commit/21261436492f0014930e804e20586e3833bb91b9"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/kamailio/kamailio/issues/4954"
    },
    {
      "type": "FIX",
      "url": "https://github.com/kamailio/kamailio/pull/4958"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106803"
    }
  ],
  "schema_version": "1.9.2"
}